Miles to KM Converter — Mile to Kilometer Calculator
Convert miles to kilometers (km) and km to miles instantly. 1 mile = 1.609344 km — for road trips, running, cycling, and speed limits in the USA, UK, and Canada.
Convert Miles to Kilometers
Live conversion as you type. International statute mile: 1 mi × 1.609344 = km
Miles to Kilometers Conversion Chart
Common mile distances with km and meters. Click a row to load.
| Miles (mi) | Kilometers (km) | Meters (m) | Notes |
|---|
Running Races & Road Trip Distances
Popular race lengths and familiar travel distances in miles and km.
| Distance | Miles | Kilometers |
|---|
Miles vs Kilometers by Country
How the USA, UK, and Canada use miles and kilometers on roads and in sport.
| Country | Road signs | Sport / fitness | Notes |
|---|---|---|---|
| United States | Miles, mph | 5K/10K in km; trails in miles | Odometers and speed limits in miles |
| United Kingdom | Miles, mph | Park runs in km; races mixed | Only major country in Europe with miles on roads |
| Canada | Kilometers, km/h | Metric (km) | Fully metric on highways; miles rare except US border context |
Batch Miles to Kilometers
Convert multiple distances — one per line or comma-separated.
Convert to All Distance Units
Transform imperial miles or metric kilometers into your choice of meters, feet, yards, or nautical miles. Meters (m), Feet (ft), Yards (yd), Nautical Miles (NM)
Distance Conversion Formulas
International statute mile — exact factors (1 mi = 1,609.344 m).
How to Convert Miles to Kilometers
The international statute mile equals 1.609344 kilometers (1 mile = 1,609.344 meters). For converting miles to km, you need to multiply by 1.609344: 23 mi × 1.609344 = 37.014912 km.
The United States and United Kingdom display road distances and speed limits in miles. Canada uses kilometers on highways. Runners worldwide often train in kilometers (5K, 10K) while US race descriptions may list mile splits — this converter handles both.
Miles to kilometers chart
| Miles | Kilometers | Context |
|---|---|---|
| 1 mi | 1.609 km | Short drive / walk |
| 3.1 mi | 5 km | Popular race distance |
| 6.2 mi | 10 km | Double 5K |
| 13.1 mi | 21.1 km | Half marathon |
| 26.2 mi | 42.2 km | Full marathon |
| 100 mi | 160.9 km | Century ride (cycling) |
Quick mental math
- Miles to km: Multiply by 1.6 for a close estimate (exact: 1.609344).
- Km to miles: Multiply by 0.62 for a close estimate (exact: 0.621371).
- 5 km ≈ 3.1 miles — handy for runners switching between US and metric race plans.
Related distance converters
Miles to KM FAQ
How many kilometers are in 1 mile?
Each mile = 1.609344 kilometers . Often rounded to 1.61 km in everyday use.
How do I convert 100 miles to km?
100 mi × 1.609344 = 160.93 km. Use the batch tab for multiple distances at once.
How many miles is 5 kilometers?
5 km ÷ 1.609344 ≈ 3.11 miles. Swap units on this page for instant reverse conversion.
Does the UK use miles or kilometers?
The UK uses miles and mph on road signs, like the US. Most other European countries use kilometers.
How many km is a marathon?
A full marathon is 26.2 miles = 42.195 km (official race distance). Half marathon is 13.1 mi / 21.1 km.
Is 1.6 km per mile exact?
1.6 is a rough estimate. The precise factor is 1.609344 km each mile. This calculator uses the precise value.
Quickly convert miles to kilometers with our free mi to km calculator. Learn the simple conversion formula and access a comprehensive miles to kilometers conversion chart for accurate results.
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 mi | 1.609 km |
| 5 mi | 8.047 km |
| 10 mi | 16.093 km |
| 26.2 mi | 42.164 km |
| 50 mi | 80.467 km |
| 100 mi | 160.934 km |
2026-06-05 20:02:39
Taylor Bennett